body {
    width: 100vw;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #34495e;
}

@mixin center {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}

main {
    width: 400px;
    height: 400px;
    background-color: white;
    border-radius: 50%;
    border: solid 3px #ddd;
    position: relative;

    &::before {
        content: '';
        width: 10px;
        height: 10px;
        background-color: black;
        border-radius: 50%;
        @include center();
    }

    section {
        width: 100%;
        height: 100%;
        display: flex;
        justify-content: center;
        align-items: center;
        @include center();

        div {
            width: 17px;
            height: 2px;
            background-color: #000;
            position: absolute;

            @for $i from 1 to 13 {
                &:nth-child(#{$i}) {
                    transform: rotate(#{$i*30+90}deg) translateX(-170px);
                }

                &:nth-child(#{$i})::after {
                    content: '#{$i}';
                    position: absolute;
                    right: -20px;
                    top: -10px;
                    transform: rotate(#{360-($i*30+90)}deg);
                }
            }
        }
    }

    aside {
        width: 100%;
        height: 100%;
        @include center();
        display: flex;
        justify-content: center;
        align-items: center;
        div {
          width: 3px;
          background-color: #000;
          position: absolute;
          transform: translateY(-50%);
          transition-duration: 1s;
          transition-timing-function: steps(60, start);
          &:nth-child(1) {
            height: 30px;
            width: 8px;
            transform: rotate(25deg) translateY(-50%);
          }
          &:nth-child(2) {
            height: 50px;
            width: 5px;
            transform: rotate(145deg) translateY(-50%);
          }
          &:nth-child(3) {
            height: 100px;
            width: 2px;
            transform: rotate(0deg) translateY(-50%);
          }
        }
      }

    &:hover>aside>div:nth-child(3) {
        transition-duration: 60s;
        transform: rotate(360deg) translateY(-50%);
    }
}